From 983775a1e07a2ceb3c7923f59570f86622f99ebf Mon Sep 17 00:00:00 2001
From: Tom Teichler <tom.teichler@teckids.org>
Date: Tue, 10 Dec 2019 22:40:31 +0100
Subject: [PATCH] REsolve TypeError.

---
 biscuit/apps/alsijil/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/biscuit/apps/alsijil/models.py b/biscuit/apps/alsijil/models.py
index e2e079d99..7c7578f44 100644
--- a/biscuit/apps/alsijil/models.py
+++ b/biscuit/apps/alsijil/models.py
@@ -30,7 +30,7 @@ class PersonalNote(models.Model):
                     'lesson_period__period__period', 'person__last_name', 'person__first_name']
 
 
-class LessonDocumentation(models.Model, CRUDMixin):
+class LessonDocumentation(CRUDMixin):
     """ A documentation on a single lesson period. Non-personal, includes
     the topic and homework of the lesson.
     """
-- 
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